Episode 12: Glaciers

The video explores the glaciers of Yosemite National Park, focusing on the Lyell and McClure Glaciers. It discusses their locations, features, and the challenges of exploring them. The video highlights the impact of climate change on these glaciers, noting their retreat and the broader environmental implications. It emphasizes the importance of these glaciers to Yosemite's wildness and heritage, while also acknowledging the global responsibility to address climate change.

What makes the high country of Yosemite a better place to observe glaciers compared to the valley?

• It has more tourist facilities.

• It is easier to access.

• It has more wildlife.

• It is at a higher elevation with more recent glacial activity.

What is a notable feature of the Lyell Glacier?

• It is the smallest glacier in Yosemite.

• It is located in a densely forested area.

• It is the largest glacier in Yosemite National Park.

• It is easily accessible by car.

What is a crevasse in the context of glaciers?

• A type of rock formation.

• A small animal living on glaciers.

• A large fissure or chasm in the glacier.

• A type of plant found on glaciers.

How is the movement of the McClure Glacier measured?

• By observing the color of the ice.

• By measuring the temperature of the ice.

• By counting the number of crevasses.

• By tracking stakes placed in the glacier over time.

What is the main reason for the retreat of glaciers in Yosemite?

• Natural geological processes.

• Deforestation in the area.

• A globally changing climate.

• Increased tourism.

What challenge do resource managers face regarding the glaciers in Yosemite?

• They need to increase the number of glaciers.

• They have to manage the retreating glaciers with limited options.

• They need to build more roads to the glaciers.

• They have to prevent tourists from visiting the glaciers.

What is the significance of glaciers in Yosemite according to the narrator?

• They are the only glaciers in the United States.

• They are the main attraction for tourists.

• They add to the wildness and mystery of Yosemite.

• They are a major source of income for the park.